Module predicates 

Structs

ColumnPredicate

The conjuncts of a row predicate that read one column, conjoined.

ColumnPredicateExpr

ColumnStatistics

DynamicColumnPredicate

A conjunct on one column that a producer sets at run time. It keeps every row until source says it filters rows.

PhysicalExprWithConstCols

RuntimeRangeHint

A column whose batches a reader may skip by a RuntimeRange. It is never evaluated per row.

ScanIOPredicate

StagedScanIOPredicate

The row predicate split into the conjuncts that read a single column and the rest.

Enums

ReadOrder

The order in which a reader best reads batches for a predicate that keeps fewer values as its producer sees more.

RuntimeRange

What a producer has published for a column: a reader skips the batches whose statistics fall outside the range. It can change while a file is read.

SpecializedColumnPredicate

Traits

ColumnIoExpr

An expression a reader evaluates to a column, rather than to a predicate mask.

DynamicPredicateSource

A reader’s view of a predicate that a producer sets at run time.

PhysicalIoExpr

SkipBatchPredicate

Functions

apply_predicateipc or parquet

cast_bound

A range bound as dtype, or None when it does not survive the cast, in which case it bounds nothing.